chore: Remove Rust implementation (#18)

* refactor: Remove Rust implementation
---
{"auto-commit-msg":{"language":"go","model":"gemini-2.5-flash","version":"0.4.0-dev","response_time":10.17,"execution_time":10.19}}

* refactor: Remove unused language field from Trace struct

The `Language` field in the `Trace` struct is no longer used and has been removed. This change simplifies the struct and reduces potential confusion.

The CI configuration has also been updated to remove the matrix job for different packages, as the build process now targets the default package.
---
{"auto-commit-msg":{"language":"go","model":"gemini-2.5-flash-lite","version":"0.4.0-dev","response_time":1.18,"execution_time":1.2}}

Author: sestrella

.github/workflows/build.yml

@@ -14,9 +14,6 @@ jobs:
         os:
           - macos-latest
           - ubuntu-latest
-        package:
-          - go
-          - rust
       fail-fast: true
     steps:
       - uses: actions/checkout@v5
@@ -26,8 +23,8 @@ jobs:
           name: sestrella
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
           skipPush: ${{ github.ref_name != 'main' }}
-      - run: nix build .#${{ matrix.package }}
-      - run: nix run .#${{ matrix.package }} -- --version
+      - run: nix build .#
+      - run: nix run .# -- --version
 
   template:
     runs-on: ubuntu-latest

README.md

@@ -131,16 +131,6 @@ commit` without a commit message generates a commit message. If a commit message
 is given, `auto-commit-msg` does not generate a commit message and instead uses
 the one provided by the user.
 
-## Benchmark
-
-The following table compares the Go and Rust implementations; it was built using
-[hyperfine](https://github.com/sharkdp/hyperfine).
-
-| Command | Mean [s] | Min [s] | Max [s] | Relative |
-|:---|---:|---:|---:|---:|
-| `./auto-commit-msg` | 1.101 ± 0.205 | 0.776 | 1.309 | 1.00 |
-| `./rust/target/release/acm` | 1.244 ± 0.106 | 1.127 | 1.416 | 1.13 ± 0.23 |
-
 ## License
 
 [MIT](LICENSE)

cmd/root.go

@@ -34,7 +34,6 @@ type DiffConfig struct {
 }
 
 type Trace struct {
-	Language      string  `json:"language"`
 	Model         string  `json:"model"`
 	Version       string  `json:"version"`
 	ResponseTime  float64 `json:"response_time"`
@@ -145,7 +144,6 @@ var rootCmd = &cobra.Command{
 			executionDuration := time.Since(executionTime)
 			trace, err := json.Marshal(TraceWrapper{
 				Trace: Trace{
-					Language:      "go",
 					Model:         model,
 					Version:       strings.TrimSpace(cmd.Version),
 					ResponseTime:  math.Round(responseDuration.Seconds()*100) / 100,

devenv.nix

@@ -22,7 +22,7 @@
 
   git-hooks.hooks.auto-commit-msg = {
     enable = true;
-    entry = lib.getExe (pkgs.callPackage ./rust/default.nix { });
+    entry = lib.getExe (pkgs.callPackage ./default.nix { });
     stages = [ "prepare-commit-msg" ];
     verbose = true;
   };

devenv.yaml

@@ -12,4 +12,3 @@ inputs:
 secretspec:
   enable: true
   provider: keyring
-  profile: development

flake.nix

@@ -32,20 +32,9 @@
               nix-filter.overlays.default
             ];
           };
-          lib = pkgs.lib;
         in
-        rec {
-          benchmark = pkgs.writeShellScriptBin "benchmark" ''
-            ${lib.getExe pkgs.hyperfine} \
-              --runs 5 \
-              --prepare 'sleep 1' \
-              --export-markdown benchmark.md \
-              ${lib.getExe go} \
-              ${lib.getExe rust}
-          '';
-          default = go;
-          go = pkgs.callPackage ./default.nix { };
-          rust = pkgs.callPackage ./rust/default.nix { };
+        {
+          default = pkgs.callPackage ./default.nix { };
         }
       );